Álgebra y Geometría

Jueves 8 de abril de 2021
10:00hrs

En línea (Google Meet)


Imparte(n)

  • Rémi Bignalet-Cazalet
    (Paris)

Responsable(s):

  • Carlos Alfonso Cabrera Ocañas
  • Julie Decaup

Resumen:

the projective degrees of a rational map between projective 
spaces are the degrees of the pre-images of general linear spaces of 
increasing dimension. In this talk, after explaining how to compute 
these projective degrees in concrete situations, I will present the 
construction of determinantal maps, i.e. rational maps whose 
components are the maximal minors of a matrix, having palindromic 
projective degrees. In particular, this construction gives the 
description of Cremona maps, i.e. birational map between projective 
spaces, with specific projective degrees.


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